Just How Fast Is The Universe Expanding EXACTLY? ...and How Do We Know This? Deep Astronomy podcast

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Just How Fast is the Universe Expanding EXACTLY? ...and how do we know this?

6y ago 1:01:52

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MP3•Thuis aflevering

Inhoud geleverd door Deep Astronomy. Alle podcastinhoud, inclusief afleveringen, afbeeldingen en podcastbeschrijvingen, wordt rechtstreeks geüpload en geleverd door Deep Astronomy of hun podcastplatformpartner. Als u denkt dat iemand uw auteursrechtelijk beschermde werk zonder uw toestemming gebruikt, kunt u het hier beschreven proces https://nl.player.fm/legal volgen.

We've known since Edwin Hubble's time that the universe has been expanding. What we've only recently learned (like, in the past 10 years or so) is that the universe is accelerating as it expands. Measuring this expansion rate has been problematic and while there are at least two different ways to make the measurement, they don't always agree.

This episode features Ed Macauley from the University of Portsmouth UK, and a member of the Dark Energy Survey collaboration. He and his team have been using a calibrated version of the 'standard candle' method of determining the rate of universal expansion, also known as the Hubble Constant or H0 to get a better answer that agrees with other measurement techniques.

You can read Ed's paper on Arxiv.org here: https://arxiv.org/pdf/1811.02376.pdf

… continue reading

37 afleveringen

#Deep Astronomy #Astronomy #Science #Natural Sciences

Artwork

Just How Fast is the Universe Expanding EXACTLY? ...and how do we know this?

70 subscribers

published 6y ago

Delen

MP3•Thuis aflevering

Inhoud geleverd door Deep Astronomy. Alle podcastinhoud, inclusief afleveringen, afbeeldingen en podcastbeschrijvingen, wordt rechtstreeks geüpload en geleverd door Deep Astronomy of hun podcastplatformpartner. Als u denkt dat iemand uw auteursrechtelijk beschermde werk zonder uw toestemming gebruikt, kunt u het hier beschreven proces https://nl.player.fm/legal volgen.

We've known since Edwin Hubble's time that the universe has been expanding. What we've only recently learned (like, in the past 10 years or so) is that the universe is accelerating as it expands. Measuring this expansion rate has been problematic and while there are at least two different ways to make the measurement, they don't always agree.

This episode features Ed Macauley from the University of Portsmouth UK, and a member of the Dark Energy Survey collaboration. He and his team have been using a calibrated version of the 'standard candle' method of determining the rate of universal expansion, also known as the Hubble Constant or H0 to get a better answer that agrees with other measurement techniques.

You can read Ed's paper on Arxiv.org here: https://arxiv.org/pdf/1811.02376.pdf

… continue reading

37 afleveringen

#Deep Astronomy #Astronomy #Science #Natural Sciences

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